Powerful Large Hydraulic Excavator
Comfortable Operator Room and Easy Manipulation
Easily visible 7″ LCD touchscreen monitor
Pressurized Cabin
Centralized switches
Retractable windshield
Error-Prevention
Safety lock lever
Battery disconnect
High Power Digging and Quick Response
Quickly responsive 4-pump system
Dual Auxiliary Hydraulics
Easy Maintenance
Large covers for easier access
Large capacity tool box
Easy Fuel Refilling
Digging depth
21’1”
Rated output
172 HP
Operating Weight
54,050 LBS
Digging depth
21’1”
Rated output
172 HP
Operating Weight
54,050 LBS
Digging depth
21’1”
Rated output
172 HP
Operating Weight
54,050 LBS
HD823MR-7
HD823MR-7
Working Ranges
| Max digging depth | 21’1’’ |
| Max digging height | 32’3’’ |
| Max vertical wall | 19’7’’ |
| Max dumping height | 22’8’’ |
| Max swing radius | 11’5’’ |
| Max digging depth at 8’ floor length | 21’5’’ |
Engine
| Rated output | 172 HP |
| Starter/Alternator | 24 Volt |
| Max torque | 494 lbf-ft/1,600 rpm |
| Pumps | Double variable piston pump and gear pump |
| System flow | 58 + 65.5 g/min |
| Max system psi | 4,975 psi |
| Max digging psi | 5,265 psi |
Boom Swing System
| Max swing speed | 14.0/min |
| Travel speed high/low | 3.7/2.4 mph |
| Gradeability | 35° |
| Max drawbar pull | 41,365 lbs |
Digging Force
| Arm digging force *at high power | 24,504 lbs / 25,853 lbs |
| Bucket digging force * at high power | 33,721 lbs / 35,745 lbs |
Service Data
| Fuel tank | 86 gal |
| Cooling system | 10.6 gal |
| Engine oil | 6.8 gal |
| DEF tank capacity | 14.5 gal |
| Hydraulic oil tank | 39.6 gal |
| Operating weight | 54, 050 lbs |
| Ground Pressure | 7.4 psi |
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